This article covers Western Digital SN5000 (Kioxia BiCS5 TLC 512Gb HDR) 1 TB.

Overview

The Western Digital SN5000 1TB SSD, launched in June 2024, is a PCIe 4.0 NVMe drive that targets budget-conscious users looking for a solid performance upgrade. It uses Kioxia BiCS5 TLC NAND and a Polaris 3 controller, with a DRAM-less design that relies on a 64MB Host Memory Buffer (HMB). The drive comes in the standard M.2 2280 form factor and offers 1,000GB of storage capacity. Priced around ¥40,500 in Japan, it sits in the entry-to-mid-range segment of PCIe 4.0 SSDs, offering a good balance of cost and performance for everyday computing and gaming.

Compatibility Guide

The SN5000 uses the M.2 2280 form factor and connects via PCIe 4.0 x4. It is backward compatible with PCIe 3.0 slots, but will operate at PCIe 3.0 speeds (around 3,500 MB/s sequential). Make sure your motherboard has an M.2 slot that supports NVMe (not SATA-only). The drive is single-sided, so it should fit in most laptops and desktops, but always check the thickness clearance if your system has a pre-installed heatsink or limited space. For best performance, pair it with a PCIe 4.0-capable motherboard and CPU.

Product Info

The SN5000 1TB was released in June 2024 and is available through major retailers such as Yahoo! Shopping and . The retail price is approximately ¥40,502 (as of August 2026). It features a PCIe 4.0 x4 interface, Kioxia BiCS5 TLC NAND, Polaris 3 controller, and a DRAM-less architecture with 64MB HMB. Warranty details are available on the Western Digital official website. Market positioning: entry to mid-range PCIe 4.0 SSD offering good value for users who do not require the absolute fastest sequential speeds.

Best Use Cases

Gamers wanting fast load times without breaking the bank: The SN5000 provides noticeably faster game loading compared to SATA SSDs. It works well for storing and launching games on a PCIe 4.0-capable system. However, if you need the fastest possible Gen4 speeds for frequent large file transfers, a DRAM-equipped model like the WD Black SN850X would be a better choice. Users upgrading from a SATA SSD or HDD: This SSD is a great drop-in upgrade for older systems, dramatically improving boot times and application responsiveness. Even on a PCIe 3.0 motherboard, the SN5000 will outperform any SATA SSD. For heavy write workloads, be aware that the DRAM-less design may cause performance dips after the SLC cache is exhausted. * Laptop storage upgrades: The single-sided design and lower power consumption make it suitable for many laptops. Verify that your laptop supports PCIe 4.0 and has an M.2 2280 slot. Some ultrabooks may only support PCIe 3.0, which is still fine but limits the drive's potential.

Things to Consider

The lack of a DRAM cache means the SN5000 may show slower sustained write speeds compared to DRAM-based SSDs, especially under heavy continuous loads. If you regularly work with large video files or databases, consider a higher-end drive. Also, ensure your motherboard has a PCIe 4.0 M.2 slot to fully utilize the drive's speed; on PCIe 3.0, performance is roughly halved. Price-wise, the SN5000 competes with drives like the Crucial P3 Plus and TeamGroup MP44L; check current prices before purchasing. Lastly, the warranty length and TBW rating should be confirmed on the manufacturer's page, as this information is not listed in the available evidence. ## FAQ
Q: Is this SSD compatible with the PS5? A: The PS5 supports M.2 2280 PCIe 4.0 SSDs, but Sony provides a list of recommended drives. The SN5000 is not officially listed, so compatibility is not guaranteed. For PS5 use, consider a recommended drive like the WD_BLACK SN850P. Q: How does the HMB (Host Memory Buffer) affect real-world performance? A: HMB uses a small portion of your system RAM as a cache for the SSD's mapping table. For typical tasks like gaming and OS booting, most users will not notice a difference from DRAM-equipped SSDs. However, under heavy random write workloads, a DRAM cache can provide more consistent performance. Q: What is the warranty for the SN5000? A: Western Digital typically offers a 5-year limited warranty or a TBW threshold, whichever comes first. Please check the official product page for the exact warranty terms for the SN5000.